Dynamo-electric machine



(No Model.)

C. J. SCHWARZE. DYNAMC ELECTRIC MACHINE.

No. 445,906. Patented Feb. 3,1891.

,ick :amid

l wl- ANCHA/EVS m (d/Mm( UNITED STATES PATENT OFFICE.

lRli JOSEPH SCHVARZE, OF BROOKLYN, NEV YORK.

DYNAMO-ELECTRIC MACHINE.

SPECIFICATION forming part of Letters Patent No. 445,906, dated February3, 1891.

Application tiled October 2, 189()1 To @ZZ whom, it may concern:

Be it known that LCAEL JosEPHScHTmnZE, a citizen of tho German Empire,residing at Brooklyn, in the county of Kings and State of New York, haveinvented new and useful Improvements in D ynaino-Electric Machines, ofwhich the following is a specification.

This invention relates to improvements in dynamo-electric machines; andthe invention consists in the details of construction set forth in thefollowing` specification and claim, and illustrated in the accompanyingdrawings, in which- Figure l is a side elevation of a dynamoelectricmachine sectioned along c x, Fig. 2. Fig. 2 is a section along y g/,Figzl. Fig. is an end view of a spool.

ln the drawings, the letter A indicates an armature which is situated inthe interior of the frame B,which contains the field-magnets- The coresC of said field-magnets are made integral with the frame, and they arerectilinear and cylindrical, so that the wire D can be wound thereon byproper mechanism, and

much time in the construction of the machine is saved. The wire is woundon spools E,

which are made in halves, as indicated in Fig. 3, so that the two halvescan be placed upon the cores and then fastened together by anysuitablemeans, and since these spools are mounted on rectilinear cylindricalwires a revolving motion can be imparted to each spool bybringin g thesame in contact with a revolving roller, so that the wires can be woun dupon the spools with little loss of time.

The armature may be of any well-known construction and provided with acommuta- Serial No. 366,807. (No model.)

tor in the well-known way. The standards F are shown adapted to supportthe axle or shaft ot' the armature. Dy casting the frame as shown aseries of pole-pieces G are formed, and the magnets C D lie intermediateto the polepieces. The trame with its cores C and pole-pieces G, beingof one piece, will forni a serviceable and durable structure. The frameB is shown properly insulated by being su pported on insulating-piecesIl, which are interposed between the frame and its base or support.

The commutator is indicated by I and the brushes byK. Six brushes areshown in Fig, l; butof course the number of brushes can be varied. Thecurrent from the brushes can be sent either entirely or partiallythrough the coils D, as required. In Fig. l the alternate brushes areshown connected with one another; or, in other words,the positivebrushes are connected to one another and the negative brushes are alsoconnected to one another.

Vhat I claim is- The coi'nbination, with the armature A, of a frame B,surrounding said armature and provided with cores C and pole-pieces G,formed integral with each other, the cores C being rectilinear andcylindrical, substantially as described.

In testimony whereof l have hereunto set my hand in the presence ot' twosubscribing witnesses.

ARL .l OSEPU SCI HVARZE.

lVitnesses:

WM. C. HAUEE, E. F. Kits'rENHUeEn.

